CN108493821A - Automatic Switching on a kind of distribution net post using electronic sensor - Google Patents
Automatic Switching on a kind of distribution net post using electronic sensor Download PDFInfo
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- CN108493821A CN108493821A CN201810716179.9A CN201810716179A CN108493821A CN 108493821 A CN108493821 A CN 108493821A CN 201810716179 A CN201810716179 A CN 201810716179A CN 108493821 A CN108493821 A CN 108493821A
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- 238000012545 processing Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 229910018503 SF6 Inorganic materials 0.000 claims description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241000208199 Buxus sempervirens Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
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- 238000009833 condensation Methods 0.000 description 1
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- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 238000009422 external insulation Methods 0.000 description 1
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- 238000002955 isolation Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
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- 238000007726 management method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
- H02B5/02—Non-enclosed substations; Substations with enclosed and non-enclosed equipment mounted on pole, e.g. pole transformer substation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/521—Sealing between contact members and housing, e.g. sealing insert
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
Abstract
The invention discloses automatic Switchings on a kind of distribution net post using electronic sensor, including switching device, line feed terminals and the supply voltage mutual inductor connected by cable mutually, switching device includes Switch main body, electronic voltage transducer and electronic type current sensor, the voltage and current status information of electronic voltage transducer and electronic type current sensor acquisition Switch main body.The technical effects of the invention are that the power distribution network on-pole switch design for having both measurement, protection and metering can effectively improve the O＆M quality and efficiency of on-pole switch equipment, site installation test is convenient, greatly reduces power off time；Electric current, voltage sample precision are increased to metering rank using electronic sensor, the requirements such as fault detect, measurement, metering can be met；Increase matching net wire loss management and feeder automation function, helps to promote controller switching equipment operation level；One secondary device is connected using aviation connector, improves interface compatibility and leakproofness.
Description
Technical field
The present invention relates to automatic Switchings on a kind of distribution net post using electronic sensor.
Background technology
With the development of computer and digital technology, electric system has begun to turn to automation, and digitlization is intelligent,
The demand of switching devices also gradually to modularization, miniaturization, it is multi-functional, non-maintaining in terms of change.It is opened on current power distribution net post
Closing the Automation Design and transformation mainly has problems with：First and second equipment interface mismatches, compatibility, autgmentability, interchangeability
Difference；First and second equipment manufacturer's responsibility dispute is indefinite；Lack line loss function of measuring；There are equipment dew condensation phenomenons；Traditional electromagnetism
Formula electric current, voltage sensor measurement dynamic range is small, frequency band is narrow, needs additional signal to turn when being connect with digitlization secondary device
Exchange device.
Invention content
In order to solve the above technical problem, the present invention provides automatic on a kind of distribution net post using electronic sensor
Switching realizes integrated, standardization of the related power distribution network on-pole switch equipment in structure, function and operation and maintenance, together
When meet metering, protection line loss metering function.
In order to achieve the above technical purposes, the technical scheme is that：
Automatic Switching on a kind of distribution net post using electronic sensor, including pass through the switch of cable connection mutually
Device, Feeder Terminal Unit and supply voltage mutual inductor, the switching device include Switch main body, electronic voltage transducer
And electronic type current sensor, the voltage of the electronic voltage transducer and electronic type current sensor acquisition Switch main body
With current state information and be sent to Feeder Terminal Unit, the Feeder Terminal Unit includes line loss acquisition module, acquisition control
Molding block and fault processing module, the line loss acquisition module receive the voltage and current status information of acquisition Switch main body simultaneously
It is sent to acquisition control module, acquisition control module is sent to troubleshooting mould after receiving the information of line loss acquisition module and processing
Block, the supply voltage mutual inductor connecting valve ontology simultaneously provide driving power for Feeder Terminal Unit.
Automatic Switching on a kind of distribution net post using electronic sensor, electronic type voltage sensing
Device includes high-voltage arm resistance R1, low-voltage arm resistance R2, bucking electrode Pb, overvoltage protection Pov and voltage sensor output electricity
Then road, the high-voltage arm resistance R1 connecting valves ontology are connected with obtaining the voltage of Switch main body with low-voltage arm resistance R2
After be grounded, voltage output lines are in parallel with low-voltage arm resistance R2 to export by the voltage signal after low-voltage arm resistance R2 partial pressure, institute
The overvoltage protection Pov stated is parallel in voltage output lines, and the bucking electrode Pb is set to voltage output lines
Output end.
Automatic Switching, electronic type current sensor include on a kind of distribution net post using electronic sensor
The less first winding of the number of turns, iron core, the number of turns more secondary winding and shunt resistance, the first winding and Switch main body
It connects and is wound in iron core side, the secondary winding is wound in the iron core side other side, and is in series in secondary winding point
Leakage resistance.
Automatic Switching on a kind of distribution net post using electronic sensor further includes closing gas tank, described
Switch main body, electronic type voltage transformer and electronic current mutual inductor may be contained within closing gas tank in, close gas tank in fill
Sulfur hexafluoride gas gas.
Automatic Switching, the Switch main body, electronics on a kind of distribution net post using electronic sensor
End between formula voltage sensor and electronic type current sensor for the cable of connection is to be connect equipped with the protection of insulated enclosure cover
The aviation socket of mouth.
Automatic Switching on a kind of distribution net post using electronic sensor, cable are double layer screen multiple twin
Line.
On-pole switch ontology, Feeder Terminal Unit in the present invention and between supply voltage mutual inductor use aviation connector
Connection, the aerial aviation socket of exposure is sealed metallic conductor using sealing material, to improve its anti-dewing performance；
Traditional electromagnetic potential, current transformer are replaced with into electronic voltage transducer and electronic type current sensor respectively, and
It is built in on-pole switch ontology, solves the problems, such as that conventional current mutual inductor anti-saturation degree is low, reduce and opened on distribution net post
The in-site installation complexity of pass, improves device integration；The built-in line loss acquisition module in line feed terminals, and configure abundant
Electricity computing function；The built-in fault processing module in line feed terminals, and adjustable control logic is configured, to not depend on
The route selection on the spot of singlephase earth fault is completed under conditions of main website and communication, section positions and is isolated；Equipment is by producer's integration
The supply of material, batch production integrated debugging.
Therefore, the present invention has the following advantages：
The O＆M matter of on-pole switch equipment can be effectively improved by having both the power distribution network on-pole switch design of measurement, protection and metering
Amount and efficiency, site installation test is convenient, greatly reduces power off time；It is using electronic sensor that electric current, voltage sample is smart
Degree is increased to metering rank, can meet the requirements such as fault detect, measurement, metering；Increase matching net wire loss management and feeder automation
Function helps to promote controller switching equipment operation level；One secondary device is connected using aviation connector, improves the compatibility of interface
Property and leakproofness.
Description of the drawings
Fig. 1 is the power distribution network on-pole switch design frame chart proposed by the present invention for having both measurement, protection and metering；
Fig. 2 is the electronic type voltage transformer schematic diagram that the present invention uses；
Fig. 3 is the electronic current mutual inductor schematic diagram that the present invention uses；
Fig. 4 is the aviation connector schematic diagram between the line feed terminals of the invention used and power distribution network on-pole switch ontology.
Specific implementation mode
With reference to example and attached drawing, the invention will be further described.
The overall structure of the present invention is as shown in Figure 1, by power distribution network on-pole switch ontology, Feeder Terminal Unit, supply voltage
The compositions such as mutual inductor, aviation connector.
Power distribution network on-pole switch body design：Using Threephase common-box structure, SF6 gas-insulateds, vacuum extinction, external insulation
Using compound inslation；Using operating mechanism and the integrated structure of ontology, and it is built in closing gas tank；Using army's grade aviation
Socket, aviation socket are configured with insulated enclosure cover protection interface；Shell degree of protection is IP67；On-pole switch in-built electrical minor electricity
Pressure sensor and electronic type current sensor, for acquiring three-phase voltage, three-phase current, residual voltage and zero-sequence current.
Electronic type voltage transformer designs：Its schematic diagram is as shown in Figure 2.Mutual inductor is by high-voltage arm resistance R1, low-voltage arm electricity
Hinder R2, bucking electrode Pb, overvoltage protection Pov compositions.Primary voltage is converted into and primary voltage by voltage divider principle
The small voltage signal proportional with phase, as shown in formula (1).
The influence for improving field distribution situation and stray capacitance using the method for bucking electrode, in secondary output end parallel connection one
A overvoltage protection prevents from improving secondary side voltage when secondary output end is opened a way.Electronic type voltage transformer is specific
Parameter is as follows：
Structure：Three-phase integrated plus independent zero sequence sampling
Phase voltage no-load voltage ratio：
Phase voltage class of accuracy：0.5 grade
Residual voltage no-load voltage ratio：
Residual voltage class of accuracy：1 grade
Electronic current mutual inductor designs：Its schematic diagram is as shown in figure 3, by once winding N1, small iron core and loss it is minimum
The secondary winding N of change2Composition.Shunt resistance R is connected in secondary winding2, secondary current I2In shunt resistance R2The voltage at both ends
U drops2With primary current I1It is proportional, as shown in formula (2).
Electronic current mutual inductor design parameter is as follows：
Structure：Three-phase integrated plus independent zero sequence sampling
Phase voltage no-load voltage ratio：600A/1V
Phase voltage class of accuracy：0.5S grades
Residual voltage no-load voltage ratio：20A/0.2V
Residual voltage class of accuracy：1 grade
In order to ensure accuracy and the safety of omicronff signal transmission, the signal of electronic current, voltage transformer is avoided
It is interfered by external signal, cable is all made of double layer screen twisted-pair feeder to carry out the transmission of signal, point of switch-side cable
Layer shielded layer and total shielded layer and total shielded layer all reliable grounds of end side, ensure signal transmission.
Line feed terminals design：Board hardware realization chip-level encryption；Built-in line loss acquisition module, acquisition control module and event
Hinder processing module；It configures 10 core aviation sockets and is used for transmission energy storage, divide-shut brake control and Switch main body status signal, 14 core aviations
Socket is used for transmission the small signal of weak voltage analog of electronic voltage transducer and electronic type current sensor acquisition.Line feed terminals
Aviation connector structure between Switch main body is as shown in Figure 4.
Fault processing module designs：Have Adaptive synthesis type feeder automation function on the spot, do not depend on main website and communication,
By short circuit/Earth Fault Detection technology, without pressure separating brake, failure path adaptive delay incoming call close a floodgate etc. control logics, it is adaptive
The multi-joint network Distribution Network Frame of multiple-limb is answered, realizes that the route selection on the spot of singlephase earth fault, section position and be isolated.
Line loss acquisition module designs：It supports hot plug, can individually be measured, be verified, meet metering evidence obtaining and pattern is real
The requirement tested；It is communicated using RS232 and line feed terminals, power supply is powered using DC24V；The electric flux for having and being measured
(active/idle) directly proportional light pulse output and electric pulse output, wherein light pulse output is using superbright, long-life LED device
Part, electric pulse output has electrical isolation, and can be acquired from front；Have three-phase voltage, three-phase current, frequency, zero-sequence current
With
Residual voltage measures function；Has the calculating of four-quadrant active energy, capacity of idle power calculates, power factor calculates work(
Energy；Four-quadrant active energy, capacity of idle power are calculated as 0.5S class precisions, power factor resolution ratio 0.01；Has continuous data jelly
Tie function, including day, the moon freezing data, freezing data when power direction changes；It can realize segmentation line loss metering；Have and passes through
101, continuous data is uploaded to the ability of distribution main website by 104 stipulations modes by line feed terminals.
Claims (6)
1. automatic Switching on a kind of distribution net post using electronic sensor, which is characterized in that including passing through cable mutually
Switching device, Feeder Terminal Unit and the supply voltage mutual inductor of connection, the switching device include Switch main body, electronic type
Voltage sensor and electronic type current sensor, the electronic voltage transducer and electronic type current sensor acquisition switch
The voltage and current status information of ontology is simultaneously sent to Feeder Terminal Unit, and the Feeder Terminal Unit includes line loss acquisition mould
Block, acquisition control module and fault processing module, the line loss acquisition module receive the voltage and current of acquisition Switch main body
Status information is simultaneously sent to acquisition control module, and acquisition control module is sent to after receiving the information of line loss acquisition module and processing
Fault processing module, the supply voltage mutual inductor connecting valve ontology simultaneously provide driving power for Feeder Terminal Unit.
2. automatic Switching, feature exist on a kind of distribution net post using electronic sensor according to claim 1
In the electronic voltage transducer includes high-voltage arm resistance R1, low-voltage arm resistance R2, bucking electrode Pb, overvoltage protection
Device Pov and voltage sensor output circuit, the high-voltage arm resistance R1 connecting valves ontology to obtain the voltage of Switch main body,
Then it is grounded with after low-voltage arm resistance R2 series connection, voltage output lines are in parallel with low-voltage arm resistance R2 to export by low-voltage arm resistance
Voltage signal after R2 partial pressures, the overvoltage protection Pov are parallel in voltage output lines, the bucking electrode
Pb is set to the output end of voltage output lines.
3. automatic Switching, feature exist on a kind of distribution net post using electronic sensor according to claim 1
In, electronic type current sensor include the more secondary winding and shunt resistance of the less first winding of the number of turns, iron core, the number of turns,
The first winding connects with Switch main body and is wound in iron core side, and it is another that the secondary winding is wound in iron core side
Side, and shunt resistance is in series in secondary winding.
4. automatic Switching, feature exist on a kind of distribution net post using electronic sensor according to claim 1
In, further include closing gas tank, the Switch main body, electronic type voltage transformer and electronic current mutual inductor may be contained within sealing
It holds one's breath in case, closes in gas tank and fill sulfur hexafluoride gas gas.
5. automatic Switching, feature exist on a kind of distribution net post using electronic sensor according to claim 1
In the end between the Switch main body, electronic voltage transducer and electronic type current sensor for the cable of connection
For the aviation socket equipped with insulated enclosure cover protection interface.
6. automatic Switching, feature exist on a kind of distribution net post using electronic sensor according to claim 1
In cable is double layer screen twisted-pair feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716179.9A CN108493821A (en) | 2018-07-03 | 2018-07-03 | Automatic Switching on a kind of distribution net post using electronic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716179.9A CN108493821A (en) | 2018-07-03 | 2018-07-03 | Automatic Switching on a kind of distribution net post using electronic sensor |
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| Publication Number | Publication Date |
|---|---|
| CN108493821A true CN108493821A (en) | 2018-09-04 |
Family
ID=63343363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810716179.9A Pending CN108493821A (en) | 2018-07-03 | 2018-07-03 | Automatic Switching on a kind of distribution net post using electronic sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687407A (en) * | 2018-12-17 | 2019-04-26 | 长园电力技术有限公司 | The reversed blocking device and implementation method of one or two fusion serial column load switch |
| CN110161331A (en) * | 2019-05-16 | 2019-08-23 | 李勇 | A kind of detection platform and control method merging complete set of equipments for one or two times |
| CN110261764A (en) * | 2019-06-10 | 2019-09-20 | 浙江华电器材检测研究所有限公司 | A kind of one or two complete on-pole switch integrated debugging methods |
| CN110470888A (en) * | 2019-09-09 | 2019-11-19 | 宁波耀华电气科技有限责任公司 | A kind of distribution automation integrated electric pressure sensor |
| CN113162819A (en) * | 2021-02-22 | 2021-07-23 | 广东电网有限责任公司梅州供电局 | Joint debugging method and device for 10kV pole-mounted switch complete equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687407A (en) * | 2018-12-17 | 2019-04-26 | 长园电力技术有限公司 | The reversed blocking device and implementation method of one or two fusion serial column load switch |
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| CN110161331A (en) * | 2019-05-16 | 2019-08-23 | 李勇 | A kind of detection platform and control method merging complete set of equipments for one or two times |
| CN110161331B (en) * | 2019-05-16 | 2021-06-01 | 李勇 | Detection platform for primary and secondary fusion complete equipment and control method |
| CN110261764A (en) * | 2019-06-10 | 2019-09-20 | 浙江华电器材检测研究所有限公司 | A kind of one or two complete on-pole switch integrated debugging methods |
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| CN110470888A (en) * | 2019-09-09 | 2019-11-19 | 宁波耀华电气科技有限责任公司 | A kind of distribution automation integrated electric pressure sensor |
| CN113162819A (en) * | 2021-02-22 | 2021-07-23 | 广东电网有限责任公司梅州供电局 | Joint debugging method and device for 10kV pole-mounted switch complete equipment and storage medium |
| CN113162819B (en) * | 2021-02-22 | 2022-05-13 | 广东电网有限责任公司梅州供电局 | Joint debugging method and device for 10kV pole-mounted switch complete equipment and storage medium |
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